210147220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7789}}^1$

素因数の和:7888

約数の個数: 48

約数和(自身を含む): 471139200

約数和(自身を除く): 260991980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2698, 5396, 6745, 7789, 13490, 15578, 26980, 31156, 38945, 77890, 147991, 155780, 295982, 553019, 591964, 739955, 1106038, 1479910, 2212076, 2765095, 2959820, 5530190, 10507361, 11060380, 21014722, 42029444, 52536805, 105073610, 210147220]

約数ペア:

[(1, 210147220), (2, 105073610), (4, 52536805), (5, 42029444), (10, 21014722), (19, 11060380), (20, 10507361), (38, 5530190), (71, 2959820), (76, 2765095), (95, 2212076), (142, 1479910), (190, 1106038), (284, 739955), (355, 591964), (380, 553019), (710, 295982), (1349, 155780), (1420, 147991), (2698, 77890), (5396, 38945), (6745, 31156), (7789, 26980), (13490, 15578)]