309644120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 784028160

約数和(自身を除く): 474384040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 37, 40, 62, 68, 74, 85, 124, 136, 148, 155, 170, 185, 248, 296, 310, 340, 370, 397, 527, 620, 629, 680, 740, 794, 1054, 1147, 1240, 1258, 1480, 1588, 1985, 2108, 2294, 2516, 2635, 3145, 3176, 3970, 4216, 4588, 5032, 5270, 5735, 6290, 6749, 7940, 9176, 10540, 11470, 12307, 12580, 13498, 14689, 15880, 19499, 21080, 22940, 24614, 25160, 26996, 29378, 33745, 38998, 45880, 49228, 53992, 58756, 61535, 67490, 73445, 77996, 97495, 98456, 117512, 123070, 134980, 146890, 155992, 194990, 209219, 246140, 249713, 269960, 293780, 389980, 418438, 455359, 492280, 499426, 587560, 779960, 836876, 910718, 998852, 1046095, 1248565, 1673752, 1821436, 1997704, 2092190, 2276795, 2497130, 3642872, 4184380, 4553590, 4994260, 7741103, 8368760, 9107180, 9988520, 15482206, 18214360, 30964412, 38705515, 61928824, 77411030, 154822060, 309644120]

約数ペア:

[(1, 309644120), (2, 154822060), (4, 77411030), (5, 61928824), (8, 38705515), (10, 30964412), (17, 18214360), (20, 15482206), (31, 9988520), (34, 9107180), (37, 8368760), (40, 7741103), (62, 4994260), (68, 4553590), (74, 4184380), (85, 3642872), (124, 2497130), (136, 2276795), (148, 2092190), (155, 1997704), (170, 1821436), (185, 1673752), (248, 1248565), (296, 1046095), (310, 998852), (340, 910718), (370, 836876), (397, 779960), (527, 587560), (620, 499426), (629, 492280), (680, 455359), (740, 418438), (794, 389980), (1054, 293780), (1147, 269960), (1240, 249713), (1258, 246140), (1480, 209219), (1588, 194990), (1985, 155992), (2108, 146890), (2294, 134980), (2516, 123070), (2635, 117512), (3145, 98456), (3176, 97495), (3970, 77996), (4216, 73445), (4588, 67490), (5032, 61535), (5270, 58756), (5735, 53992), (6290, 49228), (6749, 45880), (7940, 38998), (9176, 33745), (10540, 29378), (11470, 26996), (12307, 25160), (12580, 24614), (13498, 22940), (14689, 21080), (15880, 19499)]