278049006460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{9851}}^1$

素因数の和:10207

約数の個数: 96

約数和(自身を含む): 600168864960

約数和(自身を除く): 322119858500

約数列:

[1, 2, 4, 5, 10, 20, 89, 101, 157, 178, 202, 314, 356, 404, 445, 505, 628, 785, 890, 1010, 1570, 1780, 2020, 3140, 8989, 9851, 13973, 15857, 17978, 19702, 27946, 31714, 35956, 39404, 44945, 49255, 55892, 63428, 69865, 79285, 89890, 98510, 139730, 158570, 179780, 197020, 279460, 317140, 876739, 994951, 1411273, 1546607, 1753478, 1989902, 2822546, 3093214, 3506956, 3979804, 4383695, 4974755, 5645092, 6186428, 7056365, 7733035, 8767390, 9949510, 14112730, 15466070, 17534780, 19899020, 28225460, 30932140, 88550639, 137648023, 156207307, 177101278, 275296046, 312414614, 354202556, 442753195, 550592092, 624829228, 688240115, 781036535, 885506390, 1376480230, 1562073070, 1771012780, 2752960460, 3124146140, 13902450323, 27804900646, 55609801292, 69512251615, 139024503230, 278049006460]

約数ペア:

[(1, 278049006460), (2, 139024503230), (4, 69512251615), (5, 55609801292), (10, 27804900646), (20, 13902450323), (89, 3124146140), (101, 2752960460), (157, 1771012780), (178, 1562073070), (202, 1376480230), (314, 885506390), (356, 781036535), (404, 688240115), (445, 624829228), (505, 550592092), (628, 442753195), (785, 354202556), (890, 312414614), (1010, 275296046), (1570, 177101278), (1780, 156207307), (2020, 137648023), (3140, 88550639), (8989, 30932140), (9851, 28225460), (13973, 19899020), (15857, 17534780), (17978, 15466070), (19702, 14112730), (27946, 9949510), (31714, 8767390), (35956, 7733035), (39404, 7056365), (44945, 6186428), (49255, 5645092), (55892, 4974755), (63428, 4383695), (69865, 3979804), (79285, 3506956), (89890, 3093214), (98510, 2822546), (139730, 1989902), (158570, 1753478), (179780, 1546607), (197020, 1411273), (279460, 994951), (317140, 876739)]