20050320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4397}}^1$

素因数の和:4432

約数の個数: 80

約数和(自身を含む): 65442240

約数和(自身を除く): 45391920

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, 4397, 4560, 8794, 13191, 17588, 21985, 26382, 35176, 43970, 52764, 65955, 70352, 83543, 87940, 105528, 131910, 167086, 175880, 211056, 250629, 263820, 334172, 351760, 417715, 501258, 527640, 668344, 835430, 1002516, 1055280, 1253145, 1336688, 1670860, 2005032, 2506290, 3341720, 4010064, 5012580, 6683440, 10025160, 20050320]

約数ペア:

[(1, 20050320), (2, 10025160), (3, 6683440), (4, 5012580), (5, 4010064), (6, 3341720), (8, 2506290), (10, 2005032), (12, 1670860), (15, 1336688), (16, 1253145), (19, 1055280), (20, 1002516), (24, 835430), (30, 668344), (38, 527640), (40, 501258), (48, 417715), (57, 351760), (60, 334172), (76, 263820), (80, 250629), (95, 211056), (114, 175880), (120, 167086), (152, 131910), (190, 105528), (228, 87940), (240, 83543), (285, 70352), (304, 65955), (380, 52764), (456, 43970), (570, 35176), (760, 26382), (912, 21985), (1140, 17588), (1520, 13191), (2280, 8794), (4397, 4560)]