220189900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 575518720

約数和(自身を除く): 355328820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 73, 100, 124, 139, 140, 146, 155, 175, 217, 278, 292, 310, 350, 365, 434, 511, 556, 620, 695, 700, 730, 775, 868, 973, 1022, 1085, 1390, 1460, 1550, 1825, 1946, 2044, 2170, 2263, 2555, 2780, 3100, 3475, 3650, 3892, 4309, 4340, 4526, 4865, 5110, 5425, 6950, 7300, 8618, 9052, 9730, 10147, 10220, 10850, 11315, 12775, 13900, 15841, 17236, 19460, 20294, 21545, 21700, 22630, 24325, 25550, 30163, 31682, 40588, 43090, 45260, 48650, 50735, 51100, 56575, 60326, 63364, 71029, 79205, 86180, 97300, 101470, 107725, 113150, 120652, 142058, 150815, 158410, 202940, 215450, 226300, 253675, 284116, 301630, 314557, 316820, 355145, 396025, 430900, 507350, 603260, 629114, 710290, 754075, 792050, 1014700, 1258228, 1420580, 1508150, 1572785, 1584100, 1775725, 2201899, 3016300, 3145570, 3551450, 4403798, 6291140, 7102900, 7863925, 8807596, 11009495, 15727850, 22018990, 31455700, 44037980, 55047475, 110094950, 220189900]

約数ペア:

[(1, 220189900), (2, 110094950), (4, 55047475), (5, 44037980), (7, 31455700), (10, 22018990), (14, 15727850), (20, 11009495), (25, 8807596), (28, 7863925), (31, 7102900), (35, 6291140), (50, 4403798), (62, 3551450), (70, 3145570), (73, 3016300), (100, 2201899), (124, 1775725), (139, 1584100), (140, 1572785), (146, 1508150), (155, 1420580), (175, 1258228), (217, 1014700), (278, 792050), (292, 754075), (310, 710290), (350, 629114), (365, 603260), (434, 507350), (511, 430900), (556, 396025), (620, 355145), (695, 316820), (700, 314557), (730, 301630), (775, 284116), (868, 253675), (973, 226300), (1022, 215450), (1085, 202940), (1390, 158410), (1460, 150815), (1550, 142058), (1825, 120652), (1946, 113150), (2044, 107725), (2170, 101470), (2263, 97300), (2555, 86180), (2780, 79205), (3100, 71029), (3475, 63364), (3650, 60326), (3892, 56575), (4309, 51100), (4340, 50735), (4526, 48650), (4865, 45260), (5110, 43090), (5425, 40588), (6950, 31682), (7300, 30163), (8618, 25550), (9052, 24325), (9730, 22630), (10147, 21700), (10220, 21545), (10850, 20294), (11315, 19460), (12775, 17236), (13900, 15841)]