489012500

素因数分解:

$2^2\times 5^5\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 1181174400

約数和(自身を除く): 692161900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 29, 38, 50, 58, 71, 76, 95, 100, 116, 125, 142, 145, 190, 250, 284, 290, 355, 380, 475, 500, 551, 580, 625, 710, 725, 950, 1102, 1250, 1349, 1420, 1450, 1775, 1900, 2059, 2204, 2375, 2500, 2698, 2755, 2900, 3125, 3550, 3625, 4118, 4750, 5396, 5510, 6250, 6745, 7100, 7250, 8236, 8875, 9500, 10295, 11020, 11875, 12500, 13490, 13775, 14500, 17750, 18125, 20590, 23750, 26980, 27550, 33725, 35500, 36250, 39121, 41180, 44375, 47500, 51475, 55100, 59375, 67450, 68875, 72500, 78242, 88750, 90625, 102950, 118750, 134900, 137750, 156484, 168625, 177500, 181250, 195605, 205900, 221875, 237500, 257375, 275500, 337250, 344375, 362500, 391210, 443750, 514750, 674500, 688750, 782420, 843125, 887500, 978025, 1029500, 1286875, 1377500, 1686250, 1721875, 1956050, 2573750, 3372500, 3443750, 3912100, 4215625, 4890125, 5147500, 6434375, 6887500, 8431250, 9780250, 12868750, 16862500, 19560500, 24450625, 25737500, 48901250, 97802500, 122253125, 244506250, 489012500]

約数ペア:

[(1, 489012500), (2, 244506250), (4, 122253125), (5, 97802500), (10, 48901250), (19, 25737500), (20, 24450625), (25, 19560500), (29, 16862500), (38, 12868750), (50, 9780250), (58, 8431250), (71, 6887500), (76, 6434375), (95, 5147500), (100, 4890125), (116, 4215625), (125, 3912100), (142, 3443750), (145, 3372500), (190, 2573750), (250, 1956050), (284, 1721875), (290, 1686250), (355, 1377500), (380, 1286875), (475, 1029500), (500, 978025), (551, 887500), (580, 843125), (625, 782420), (710, 688750), (725, 674500), (950, 514750), (1102, 443750), (1250, 391210), (1349, 362500), (1420, 344375), (1450, 337250), (1775, 275500), (1900, 257375), (2059, 237500), (2204, 221875), (2375, 205900), (2500, 195605), (2698, 181250), (2755, 177500), (2900, 168625), (3125, 156484), (3550, 137750), (3625, 134900), (4118, 118750), (4750, 102950), (5396, 90625), (5510, 88750), (6250, 78242), (6745, 72500), (7100, 68875), (7250, 67450), (8236, 59375), (8875, 55100), (9500, 51475), (10295, 47500), (11020, 44375), (11875, 41180), (12500, 39121), (13490, 36250), (13775, 35500), (14500, 33725), (17750, 27550), (18125, 26980), (20590, 23750)]