81993380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{733}}^1$

素因数の和:813

約数の個数: 96

約数和(自身を含む): 213083136

約数和(自身を除く): 131089756

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 47, 68, 70, 85, 94, 119, 140, 170, 188, 235, 238, 329, 340, 470, 476, 595, 658, 733, 799, 940, 1190, 1316, 1466, 1598, 1645, 2380, 2932, 3196, 3290, 3665, 3995, 5131, 5593, 6580, 7330, 7990, 10262, 11186, 12461, 14660, 15980, 20524, 22372, 24922, 25655, 27965, 34451, 49844, 51310, 55930, 62305, 68902, 87227, 102620, 111860, 124610, 137804, 172255, 174454, 241157, 249220, 344510, 348908, 436135, 482314, 585667, 689020, 872270, 964628, 1171334, 1205785, 1744540, 2342668, 2411570, 2928335, 4099669, 4823140, 5856670, 8199338, 11713340, 16398676, 20498345, 40996690, 81993380]

約数ペア:

[(1, 81993380), (2, 40996690), (4, 20498345), (5, 16398676), (7, 11713340), (10, 8199338), (14, 5856670), (17, 4823140), (20, 4099669), (28, 2928335), (34, 2411570), (35, 2342668), (47, 1744540), (68, 1205785), (70, 1171334), (85, 964628), (94, 872270), (119, 689020), (140, 585667), (170, 482314), (188, 436135), (235, 348908), (238, 344510), (329, 249220), (340, 241157), (470, 174454), (476, 172255), (595, 137804), (658, 124610), (733, 111860), (799, 102620), (940, 87227), (1190, 68902), (1316, 62305), (1466, 55930), (1598, 51310), (1645, 49844), (2380, 34451), (2932, 27965), (3196, 25655), (3290, 24922), (3665, 22372), (3995, 20524), (5131, 15980), (5593, 14660), (6580, 12461), (7330, 11186), (7990, 10262)]