38855475

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 74958000

約数和(自身を除く): 36102525

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 61, 75, 95, 149, 171, 183, 225, 285, 305, 447, 475, 549, 745, 855, 915, 1159, 1341, 1425, 1525, 2235, 2745, 2831, 3477, 3725, 4275, 4575, 5795, 6705, 8493, 9089, 10431, 11175, 13725, 14155, 17385, 25479, 27267, 28975, 33525, 42465, 45445, 52155, 70775, 81801, 86925, 127395, 136335, 172691, 212325, 227225, 260775, 409005, 518073, 636975, 681675, 863455, 1554219, 2045025, 2590365, 4317275, 7771095, 12951825, 38855475]

約数ペア:

[(1, 38855475), (3, 12951825), (5, 7771095), (9, 4317275), (15, 2590365), (19, 2045025), (25, 1554219), (45, 863455), (57, 681675), (61, 636975), (75, 518073), (95, 409005), (149, 260775), (171, 227225), (183, 212325), (225, 172691), (285, 136335), (305, 127395), (447, 86925), (475, 81801), (549, 70775), (745, 52155), (855, 45445), (915, 42465), (1159, 33525), (1341, 28975), (1425, 27267), (1525, 25479), (2235, 17385), (2745, 14155), (2831, 13725), (3477, 11175), (3725, 10431), (4275, 9089), (4575, 8493), (5795, 6705)]