20237700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1$

素因数の和:466

約数の個数: 144

約数和(自身を含む): 69995520

約数和(自身を除く): 49757820

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, 75, 84, 92, 100, 105, 115, 138, 140, 150, 161, 175, 210, 230, 276, 300, 322, 345, 350, 419, 420, 460, 483, 525, 575, 644, 690, 700, 805, 838, 966, 1050, 1150, 1257, 1380, 1610, 1676, 1725, 1932, 2095, 2100, 2300, 2415, 2514, 2933, 3220, 3450, 4025, 4190, 4830, 5028, 5866, 6285, 6900, 8050, 8380, 8799, 9637, 9660, 10475, 11732, 12075, 12570, 14665, 16100, 17598, 19274, 20950, 24150, 25140, 28911, 29330, 31425, 35196, 38548, 41900, 43995, 48185, 48300, 57822, 58660, 62850, 67459, 73325, 87990, 96370, 115644, 125700, 134918, 144555, 146650, 175980, 192740, 202377, 219975, 240925, 269836, 289110, 293300, 337295, 404754, 439950, 481850, 578220, 674590, 722775, 809508, 879900, 963700, 1011885, 1349180, 1445550, 1686475, 2023770, 2891100, 3372950, 4047540, 5059425, 6745900, 10118850, 20237700]

約数ペア:

[(1, 20237700), (2, 10118850), (3, 6745900), (4, 5059425), (5, 4047540), (6, 3372950), (7, 2891100), (10, 2023770), (12, 1686475), (14, 1445550), (15, 1349180), (20, 1011885), (21, 963700), (23, 879900), (25, 809508), (28, 722775), (30, 674590), (35, 578220), (42, 481850), (46, 439950), (50, 404754), (60, 337295), (69, 293300), (70, 289110), (75, 269836), (84, 240925), (92, 219975), (100, 202377), (105, 192740), (115, 175980), (138, 146650), (140, 144555), (150, 134918), (161, 125700), (175, 115644), (210, 96370), (230, 87990), (276, 73325), (300, 67459), (322, 62850), (345, 58660), (350, 57822), (419, 48300), (420, 48185), (460, 43995), (483, 41900), (525, 38548), (575, 35196), (644, 31425), (690, 29330), (700, 28911), (805, 25140), (838, 24150), (966, 20950), (1050, 19274), (1150, 17598), (1257, 16100), (1380, 14665), (1610, 12570), (1676, 12075), (1725, 11732), (1932, 10475), (2095, 9660), (2100, 9637), (2300, 8799), (2415, 8380), (2514, 8050), (2933, 6900), (3220, 6285), (3450, 5866), (4025, 5028), (4190, 4830)]