28168100

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 65704128

約数和(自身を除く): 37536028

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 37, 46, 50, 74, 92, 100, 115, 148, 185, 230, 331, 370, 460, 575, 662, 740, 851, 925, 1150, 1324, 1655, 1702, 1850, 2300, 3310, 3404, 3700, 4255, 6620, 7613, 8275, 8510, 12247, 15226, 16550, 17020, 21275, 24494, 30452, 33100, 38065, 42550, 48988, 61235, 76130, 85100, 122470, 152260, 190325, 244940, 281681, 306175, 380650, 563362, 612350, 761300, 1126724, 1224700, 1408405, 2816810, 5633620, 7042025, 14084050, 28168100]

約数ペア:

[(1, 28168100), (2, 14084050), (4, 7042025), (5, 5633620), (10, 2816810), (20, 1408405), (23, 1224700), (25, 1126724), (37, 761300), (46, 612350), (50, 563362), (74, 380650), (92, 306175), (100, 281681), (115, 244940), (148, 190325), (185, 152260), (230, 122470), (331, 85100), (370, 76130), (460, 61235), (575, 48988), (662, 42550), (740, 38065), (851, 33100), (925, 30452), (1150, 24494), (1324, 21275), (1655, 17020), (1702, 16550), (1850, 15226), (2300, 12247), (3310, 8510), (3404, 8275), (3700, 7613), (4255, 6620)]