28975440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:317

約数の個数: 160

約数和(自身を含む): 99743616

約数和(自身を除く): 70768176

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 37, 39, 40, 48, 52, 60, 65, 74, 78, 80, 104, 111, 120, 130, 148, 156, 185, 195, 208, 222, 240, 251, 260, 296, 312, 370, 390, 444, 481, 502, 520, 555, 592, 624, 740, 753, 780, 888, 962, 1004, 1040, 1110, 1255, 1443, 1480, 1506, 1560, 1776, 1924, 2008, 2220, 2405, 2510, 2886, 2960, 3012, 3120, 3263, 3765, 3848, 4016, 4440, 4810, 5020, 5772, 6024, 6526, 7215, 7530, 7696, 8880, 9287, 9620, 9789, 10040, 11544, 12048, 13052, 14430, 15060, 16315, 18574, 19240, 19578, 20080, 23088, 26104, 27861, 28860, 30120, 32630, 37148, 38480, 39156, 46435, 48945, 52208, 55722, 57720, 60240, 65260, 74296, 78312, 92870, 97890, 111444, 115440, 120731, 130520, 139305, 148592, 156624, 185740, 195780, 222888, 241462, 261040, 278610, 362193, 371480, 391560, 445776, 482924, 557220, 603655, 724386, 742960, 783120, 965848, 1114440, 1207310, 1448772, 1810965, 1931696, 2228880, 2414620, 2897544, 3621930, 4829240, 5795088, 7243860, 9658480, 14487720, 28975440]

約数ペア:

[(1, 28975440), (2, 14487720), (3, 9658480), (4, 7243860), (5, 5795088), (6, 4829240), (8, 3621930), (10, 2897544), (12, 2414620), (13, 2228880), (15, 1931696), (16, 1810965), (20, 1448772), (24, 1207310), (26, 1114440), (30, 965848), (37, 783120), (39, 742960), (40, 724386), (48, 603655), (52, 557220), (60, 482924), (65, 445776), (74, 391560), (78, 371480), (80, 362193), (104, 278610), (111, 261040), (120, 241462), (130, 222888), (148, 195780), (156, 185740), (185, 156624), (195, 148592), (208, 139305), (222, 130520), (240, 120731), (251, 115440), (260, 111444), (296, 97890), (312, 92870), (370, 78312), (390, 74296), (444, 65260), (481, 60240), (502, 57720), (520, 55722), (555, 52208), (592, 48945), (624, 46435), (740, 39156), (753, 38480), (780, 37148), (888, 32630), (962, 30120), (1004, 28860), (1040, 27861), (1110, 26104), (1255, 23088), (1443, 20080), (1480, 19578), (1506, 19240), (1560, 18574), (1776, 16315), (1924, 15060), (2008, 14430), (2220, 13052), (2405, 12048), (2510, 11544), (2886, 10040), (2960, 9789), (3012, 9620), (3120, 9287), (3263, 8880), (3765, 7696), (3848, 7530), (4016, 7215), (4440, 6526), (4810, 6024), (5020, 5772)]