678901160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3449}}^1$

素因数の和:3523

約数の個数: 128

約数和(自身を含む): 1887840000

約数和(自身を除く): 1208938840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 37, 38, 40, 56, 70, 74, 76, 95, 133, 140, 148, 152, 185, 190, 259, 266, 280, 296, 370, 380, 518, 532, 665, 703, 740, 760, 1036, 1064, 1295, 1330, 1406, 1480, 2072, 2590, 2660, 2812, 3449, 3515, 4921, 5180, 5320, 5624, 6898, 7030, 9842, 10360, 13796, 14060, 17245, 19684, 24143, 24605, 27592, 28120, 34490, 39368, 48286, 49210, 65531, 68980, 96572, 98420, 120715, 127613, 131062, 137960, 193144, 196840, 241430, 255226, 262124, 327655, 458717, 482860, 510452, 524248, 638065, 655310, 893291, 917434, 965720, 1020904, 1276130, 1310620, 1786582, 1834868, 2293585, 2424647, 2552260, 2621240, 3573164, 3669736, 4466455, 4587170, 4849294, 5104520, 7146328, 8932910, 9174340, 9698588, 12123235, 16972529, 17865820, 18348680, 19397176, 24246470, 33945058, 35731640, 48492940, 67890116, 84862645, 96985880, 135780232, 169725290, 339450580, 678901160]

約数ペア:

[(1, 678901160), (2, 339450580), (4, 169725290), (5, 135780232), (7, 96985880), (8, 84862645), (10, 67890116), (14, 48492940), (19, 35731640), (20, 33945058), (28, 24246470), (35, 19397176), (37, 18348680), (38, 17865820), (40, 16972529), (56, 12123235), (70, 9698588), (74, 9174340), (76, 8932910), (95, 7146328), (133, 5104520), (140, 4849294), (148, 4587170), (152, 4466455), (185, 3669736), (190, 3573164), (259, 2621240), (266, 2552260), (280, 2424647), (296, 2293585), (370, 1834868), (380, 1786582), (518, 1310620), (532, 1276130), (665, 1020904), (703, 965720), (740, 917434), (760, 893291), (1036, 655310), (1064, 638065), (1295, 524248), (1330, 510452), (1406, 482860), (1480, 458717), (2072, 327655), (2590, 262124), (2660, 255226), (2812, 241430), (3449, 196840), (3515, 193144), (4921, 137960), (5180, 131062), (5320, 127613), (5624, 120715), (6898, 98420), (7030, 96572), (9842, 68980), (10360, 65531), (13796, 49210), (14060, 48286), (17245, 39368), (19684, 34490), (24143, 28120), (24605, 27592)]