21153840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4639}}^1$

素因数の和:4674

約数の個数: 80

約数和(自身を含む): 69043200

約数和(自身を除く): 47889360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4639, 9278, 13917, 18556, 23195, 27834, 37112, 46390, 55668, 69585, 74224, 88141, 92780, 111336, 139170, 176282, 185560, 222672, 264423, 278340, 352564, 371120, 440705, 528846, 556680, 705128, 881410, 1057692, 1113360, 1322115, 1410256, 1762820, 2115384, 2644230, 3525640, 4230768, 5288460, 7051280, 10576920, 21153840]

約数ペア:

[(1, 21153840), (2, 10576920), (3, 7051280), (4, 5288460), (5, 4230768), (6, 3525640), (8, 2644230), (10, 2115384), (12, 1762820), (15, 1410256), (16, 1322115), (19, 1113360), (20, 1057692), (24, 881410), (30, 705128), (38, 556680), (40, 528846), (48, 440705), (57, 371120), (60, 352564), (76, 278340), (80, 264423), (95, 222672), (114, 185560), (120, 176282), (152, 139170), (190, 111336), (228, 92780), (240, 88141), (285, 74224), (304, 69585), (380, 55668), (456, 46390), (570, 37112), (760, 27834), (912, 23195), (1140, 18556), (1520, 13917), (2280, 9278), (4560, 4639)]