257390700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^2$

素因数の和:193

約数の個数: 216

約数和(自身を含む): 900442368

約数和(自身を除く): 643051668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 25, 28, 30, 35, 42, 46, 50, 60, 69, 70, 73, 75, 84, 92, 100, 105, 115, 138, 140, 146, 150, 161, 175, 210, 219, 230, 276, 292, 300, 322, 345, 350, 365, 420, 438, 460, 483, 511, 525, 575, 644, 690, 700, 730, 805, 876, 966, 1022, 1050, 1095, 1150, 1380, 1460, 1533, 1610, 1679, 1725, 1825, 1932, 2044, 2100, 2190, 2300, 2415, 2555, 3066, 3220, 3358, 3450, 3650, 4025, 4380, 4830, 5037, 5110, 5329, 5475, 6132, 6716, 6900, 7300, 7665, 8050, 8395, 9660, 10074, 10220, 10658, 10950, 11753, 12075, 12775, 15330, 15987, 16100, 16790, 20148, 21316, 21900, 23506, 24150, 25185, 25550, 26645, 30660, 31974, 33580, 35259, 37303, 38325, 41975, 47012, 48300, 50370, 51100, 53290, 58765, 63948, 70518, 74606, 76650, 79935, 83950, 100740, 106580, 111909, 117530, 122567, 125925, 133225, 141036, 149212, 153300, 159870, 167900, 176295, 186515, 223818, 235060, 245134, 251850, 266450, 293825, 319740, 352590, 367701, 373030, 399675, 447636, 490268, 503700, 532900, 559545, 587650, 612835, 705180, 735402, 746060, 799350, 857969, 881475, 932575, 1119090, 1175300, 1225670, 1470804, 1598700, 1715938, 1762950, 1838505, 1865150, 2238180, 2451340, 2573907, 2797725, 3064175, 3431876, 3525900, 3677010, 3730300, 4289845, 5147814, 5595450, 6128350, 7354020, 8579690, 9192525, 10295628, 11190900, 12256700, 12869535, 17159380, 18385050, 21449225, 25739070, 36770100, 42898450, 51478140, 64347675, 85796900, 128695350, 257390700]

約数ペア:

[(1, 257390700), (2, 128695350), (3, 85796900), (4, 64347675), (5, 51478140), (6, 42898450), (7, 36770100), (10, 25739070), (12, 21449225), (14, 18385050), (15, 17159380), (20, 12869535), (21, 12256700), (23, 11190900), (25, 10295628), (28, 9192525), (30, 8579690), (35, 7354020), (42, 6128350), (46, 5595450), (50, 5147814), (60, 4289845), (69, 3730300), (70, 3677010), (73, 3525900), (75, 3431876), (84, 3064175), (92, 2797725), (100, 2573907), (105, 2451340), (115, 2238180), (138, 1865150), (140, 1838505), (146, 1762950), (150, 1715938), (161, 1598700), (175, 1470804), (210, 1225670), (219, 1175300), (230, 1119090), (276, 932575), (292, 881475), (300, 857969), (322, 799350), (345, 746060), (350, 735402), (365, 705180), (420, 612835), (438, 587650), (460, 559545), (483, 532900), (511, 503700), (525, 490268), (575, 447636), (644, 399675), (690, 373030), (700, 367701), (730, 352590), (805, 319740), (876, 293825), (966, 266450), (1022, 251850), (1050, 245134), (1095, 235060), (1150, 223818), (1380, 186515), (1460, 176295), (1533, 167900), (1610, 159870), (1679, 153300), (1725, 149212), (1825, 141036), (1932, 133225), (2044, 125925), (2100, 122567), (2190, 117530), (2300, 111909), (2415, 106580), (2555, 100740), (3066, 83950), (3220, 79935), (3358, 76650), (3450, 74606), (3650, 70518), (4025, 63948), (4380, 58765), (4830, 53290), (5037, 51100), (5110, 50370), (5329, 48300), (5475, 47012), (6132, 41975), (6716, 38325), (6900, 37303), (7300, 35259), (7665, 33580), (8050, 31974), (8395, 30660), (9660, 26645), (10074, 25550), (10220, 25185), (10658, 24150), (10950, 23506), (11753, 21900), (12075, 21316), (12775, 20148), (15330, 16790), (15987, 16100)]