201221820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{557}}^1$

素因数の和:801

約数の個数: 120

約数和(自身を含む): 635209344

約数和(自身を除く): 433987524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 223, 270, 324, 405, 446, 540, 557, 669, 810, 892, 1114, 1115, 1338, 1620, 1671, 2007, 2228, 2230, 2676, 2785, 3342, 3345, 4014, 4460, 5013, 5570, 6021, 6684, 6690, 8028, 8355, 10026, 10035, 11140, 12042, 13380, 15039, 16710, 18063, 20052, 20070, 24084, 25065, 30078, 30105, 33420, 36126, 40140, 45117, 50130, 60156, 60210, 72252, 75195, 90234, 90315, 100260, 120420, 124211, 150390, 180468, 180630, 225585, 248422, 300780, 361260, 372633, 451170, 496844, 621055, 745266, 902340, 1117899, 1242110, 1490532, 1863165, 2235798, 2484220, 3353697, 3726330, 4471596, 5589495, 6707394, 7452660, 10061091, 11178990, 13414788, 16768485, 20122182, 22357980, 33536970, 40244364, 50305455, 67073940, 100610910, 201221820]

約数ペア:

[(1, 201221820), (2, 100610910), (3, 67073940), (4, 50305455), (5, 40244364), (6, 33536970), (9, 22357980), (10, 20122182), (12, 16768485), (15, 13414788), (18, 11178990), (20, 10061091), (27, 7452660), (30, 6707394), (36, 5589495), (45, 4471596), (54, 3726330), (60, 3353697), (81, 2484220), (90, 2235798), (108, 1863165), (135, 1490532), (162, 1242110), (180, 1117899), (223, 902340), (270, 745266), (324, 621055), (405, 496844), (446, 451170), (540, 372633), (557, 361260), (669, 300780), (810, 248422), (892, 225585), (1114, 180630), (1115, 180468), (1338, 150390), (1620, 124211), (1671, 120420), (2007, 100260), (2228, 90315), (2230, 90234), (2676, 75195), (2785, 72252), (3342, 60210), (3345, 60156), (4014, 50130), (4460, 45117), (5013, 40140), (5570, 36126), (6021, 33420), (6684, 30105), (6690, 30078), (8028, 25065), (8355, 24084), (10026, 20070), (10035, 20052), (11140, 18063), (12042, 16710), (13380, 15039)]