20395830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:302

約数の個数: 128

約数和(自身を含む): 62447616

約数和(自身を除く): 42051786

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 31, 35, 39, 42, 62, 65, 70, 78, 91, 93, 105, 130, 155, 182, 186, 195, 210, 217, 241, 273, 310, 390, 403, 434, 455, 465, 482, 546, 651, 723, 806, 910, 930, 1085, 1205, 1209, 1302, 1365, 1446, 1687, 2015, 2170, 2410, 2418, 2730, 2821, 3133, 3255, 3374, 3615, 4030, 5061, 5642, 6045, 6266, 6510, 7230, 7471, 8435, 8463, 9399, 10122, 12090, 14105, 14942, 15665, 16870, 16926, 18798, 21931, 22413, 25305, 28210, 31330, 37355, 42315, 43862, 44826, 46995, 50610, 52297, 65793, 74710, 84630, 93990, 97123, 104594, 109655, 112065, 131586, 156891, 194246, 219310, 224130, 261485, 291369, 313782, 328965, 485615, 522970, 582738, 657930, 679861, 784455, 971230, 1359722, 1456845, 1568910, 2039583, 2913690, 3399305, 4079166, 6798610, 10197915, 20395830]

約数ペア:

[(1, 20395830), (2, 10197915), (3, 6798610), (5, 4079166), (6, 3399305), (7, 2913690), (10, 2039583), (13, 1568910), (14, 1456845), (15, 1359722), (21, 971230), (26, 784455), (30, 679861), (31, 657930), (35, 582738), (39, 522970), (42, 485615), (62, 328965), (65, 313782), (70, 291369), (78, 261485), (91, 224130), (93, 219310), (105, 194246), (130, 156891), (155, 131586), (182, 112065), (186, 109655), (195, 104594), (210, 97123), (217, 93990), (241, 84630), (273, 74710), (310, 65793), (390, 52297), (403, 50610), (434, 46995), (455, 44826), (465, 43862), (482, 42315), (546, 37355), (651, 31330), (723, 28210), (806, 25305), (910, 22413), (930, 21931), (1085, 18798), (1205, 16926), (1209, 16870), (1302, 15665), (1365, 14942), (1446, 14105), (1687, 12090), (2015, 10122), (2170, 9399), (2410, 8463), (2418, 8435), (2730, 7471), (2821, 7230), (3133, 6510), (3255, 6266), (3374, 6045), (3615, 5642), (4030, 5061)]