21173100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 67808160

約数和(自身を除く): 46635060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 61, 65, 75, 78, 89, 100, 122, 130, 150, 156, 178, 183, 195, 244, 260, 267, 300, 305, 325, 356, 366, 390, 445, 534, 610, 650, 732, 780, 793, 890, 915, 975, 1068, 1157, 1220, 1300, 1335, 1525, 1586, 1780, 1830, 1950, 2225, 2314, 2379, 2670, 3050, 3172, 3471, 3660, 3900, 3965, 4450, 4575, 4628, 4758, 5340, 5429, 5785, 6100, 6675, 6942, 7930, 8900, 9150, 9516, 10858, 11570, 11895, 13350, 13884, 15860, 16287, 17355, 18300, 19825, 21716, 23140, 23790, 26700, 27145, 28925, 32574, 34710, 39650, 47580, 54290, 57850, 59475, 65148, 69420, 70577, 79300, 81435, 86775, 108580, 115700, 118950, 135725, 141154, 162870, 173550, 211731, 237900, 271450, 282308, 325740, 347100, 352885, 407175, 423462, 542900, 705770, 814350, 846924, 1058655, 1411540, 1628700, 1764425, 2117310, 3528850, 4234620, 5293275, 7057700, 10586550, 21173100]

約数ペア:

[(1, 21173100), (2, 10586550), (3, 7057700), (4, 5293275), (5, 4234620), (6, 3528850), (10, 2117310), (12, 1764425), (13, 1628700), (15, 1411540), (20, 1058655), (25, 846924), (26, 814350), (30, 705770), (39, 542900), (50, 423462), (52, 407175), (60, 352885), (61, 347100), (65, 325740), (75, 282308), (78, 271450), (89, 237900), (100, 211731), (122, 173550), (130, 162870), (150, 141154), (156, 135725), (178, 118950), (183, 115700), (195, 108580), (244, 86775), (260, 81435), (267, 79300), (300, 70577), (305, 69420), (325, 65148), (356, 59475), (366, 57850), (390, 54290), (445, 47580), (534, 39650), (610, 34710), (650, 32574), (732, 28925), (780, 27145), (793, 26700), (890, 23790), (915, 23140), (975, 21716), (1068, 19825), (1157, 18300), (1220, 17355), (1300, 16287), (1335, 15860), (1525, 13884), (1586, 13350), (1780, 11895), (1830, 11570), (1950, 10858), (2225, 9516), (2314, 9150), (2379, 8900), (2670, 7930), (3050, 6942), (3172, 6675), (3471, 6100), (3660, 5785), (3900, 5429), (3965, 5340), (4450, 4758), (4575, 4628)]