278340940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:343

約数の個数: 96

約数和(自身を含む): 638668800

約数和(自身を除く): 360327860

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 131, 149, 155, 230, 262, 298, 310, 460, 524, 596, 620, 655, 713, 745, 1310, 1426, 1490, 2620, 2852, 2980, 3013, 3427, 3565, 4061, 4619, 6026, 6854, 7130, 8122, 9238, 12052, 13708, 14260, 15065, 16244, 17135, 18476, 19519, 20305, 23095, 30130, 34270, 39038, 40610, 46190, 60260, 68540, 78076, 81220, 92380, 93403, 97595, 106237, 186806, 195190, 212474, 373612, 390380, 424948, 448937, 467015, 531185, 605089, 897874, 934030, 1062370, 1210178, 1795748, 1868060, 2124740, 2244685, 2420356, 3025445, 4489370, 6050890, 8978740, 12101780, 13917047, 27834094, 55668188, 69585235, 139170470, 278340940]

約数ペア:

[(1, 278340940), (2, 139170470), (4, 69585235), (5, 55668188), (10, 27834094), (20, 13917047), (23, 12101780), (31, 8978740), (46, 6050890), (62, 4489370), (92, 3025445), (115, 2420356), (124, 2244685), (131, 2124740), (149, 1868060), (155, 1795748), (230, 1210178), (262, 1062370), (298, 934030), (310, 897874), (460, 605089), (524, 531185), (596, 467015), (620, 448937), (655, 424948), (713, 390380), (745, 373612), (1310, 212474), (1426, 195190), (1490, 186806), (2620, 106237), (2852, 97595), (2980, 93403), (3013, 92380), (3427, 81220), (3565, 78076), (4061, 68540), (4619, 60260), (6026, 46190), (6854, 40610), (7130, 39038), (8122, 34270), (9238, 30130), (12052, 23095), (13708, 20305), (14260, 19519), (15065, 18476), (16244, 17135)]