290378240

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3659}}^1$

素因数の和:3713

約数の個数: 80

約数和(自身を含む): 718882560

約数和(自身を除く): 428504320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3659, 3968, 4960, 7318, 7936, 9920, 14636, 15872, 18295, 19840, 29272, 36590, 39680, 58544, 73180, 79360, 113429, 117088, 146360, 226858, 234176, 292720, 453716, 468352, 567145, 585440, 907432, 936704, 1134290, 1170880, 1814864, 1873408, 2268580, 2341760, 3629728, 4537160, 4683520, 7259456, 9074320, 9367040, 14518912, 18148640, 29037824, 36297280, 58075648, 72594560, 145189120, 290378240]

約数ペア:

[(1, 290378240), (2, 145189120), (4, 72594560), (5, 58075648), (8, 36297280), (10, 29037824), (16, 18148640), (20, 14518912), (31, 9367040), (32, 9074320), (40, 7259456), (62, 4683520), (64, 4537160), (80, 3629728), (124, 2341760), (128, 2268580), (155, 1873408), (160, 1814864), (248, 1170880), (256, 1134290), (310, 936704), (320, 907432), (496, 585440), (512, 567145), (620, 468352), (640, 453716), (992, 292720), (1240, 234176), (1280, 226858), (1984, 146360), (2480, 117088), (2560, 113429), (3659, 79360), (3968, 73180), (4960, 58544), (7318, 39680), (7936, 36590), (9920, 29272), (14636, 19840), (15872, 18295)]