21678010320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{227519}}^1$

素因数の和:227932

約数の個数: 80

約数和(自身を含む): 67371402240

約数和(自身を除く): 45693391920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 397, 794, 1191, 1588, 1985, 2382, 3176, 3970, 4764, 5955, 6352, 7940, 9528, 11910, 15880, 19056, 23820, 31760, 47640, 95280, 227519, 455038, 682557, 910076, 1137595, 1365114, 1820152, 2275190, 2730228, 3412785, 3640304, 4550380, 5460456, 6825570, 9100760, 10920912, 13651140, 18201520, 27302280, 54604560, 90325043, 180650086, 270975129, 361300172, 451625215, 541950258, 722600344, 903250430, 1083900516, 1354875645, 1445200688, 1806500860, 2167801032, 2709751290, 3613001720, 4335602064, 5419502580, 7226003440, 10839005160, 21678010320]

約数ペア:

[(1, 21678010320), (2, 10839005160), (3, 7226003440), (4, 5419502580), (5, 4335602064), (6, 3613001720), (8, 2709751290), (10, 2167801032), (12, 1806500860), (15, 1445200688), (16, 1354875645), (20, 1083900516), (24, 903250430), (30, 722600344), (40, 541950258), (48, 451625215), (60, 361300172), (80, 270975129), (120, 180650086), (240, 90325043), (397, 54604560), (794, 27302280), (1191, 18201520), (1588, 13651140), (1985, 10920912), (2382, 9100760), (3176, 6825570), (3970, 5460456), (4764, 4550380), (5955, 3640304), (6352, 3412785), (7940, 2730228), (9528, 2275190), (11910, 1820152), (15880, 1365114), (19056, 1137595), (23820, 910076), (31760, 682557), (47640, 455038), (95280, 227519)]