15860000

素因数分解:

$2^5\times 5^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:104

約数の個数: 120

約数和(自身を含む): 42708204

約数和(自身を除く): 26848204

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 61, 65, 80, 100, 104, 122, 125, 130, 160, 200, 208, 244, 250, 260, 305, 325, 400, 416, 488, 500, 520, 610, 625, 650, 793, 800, 976, 1000, 1040, 1220, 1250, 1300, 1525, 1586, 1625, 1952, 2000, 2080, 2440, 2500, 2600, 3050, 3172, 3250, 3965, 4000, 4880, 5000, 5200, 6100, 6344, 6500, 7625, 7930, 8125, 9760, 10000, 10400, 12200, 12688, 13000, 15250, 15860, 16250, 19825, 20000, 24400, 25376, 26000, 30500, 31720, 32500, 38125, 39650, 48800, 52000, 61000, 63440, 65000, 76250, 79300, 99125, 122000, 126880, 130000, 152500, 158600, 198250, 244000, 260000, 305000, 317200, 396500, 495625, 610000, 634400, 793000, 991250, 1220000, 1586000, 1982500, 3172000, 3965000, 7930000, 15860000]

約数ペア:

[(1, 15860000), (2, 7930000), (4, 3965000), (5, 3172000), (8, 1982500), (10, 1586000), (13, 1220000), (16, 991250), (20, 793000), (25, 634400), (26, 610000), (32, 495625), (40, 396500), (50, 317200), (52, 305000), (61, 260000), (65, 244000), (80, 198250), (100, 158600), (104, 152500), (122, 130000), (125, 126880), (130, 122000), (160, 99125), (200, 79300), (208, 76250), (244, 65000), (250, 63440), (260, 61000), (305, 52000), (325, 48800), (400, 39650), (416, 38125), (488, 32500), (500, 31720), (520, 30500), (610, 26000), (625, 25376), (650, 24400), (793, 20000), (800, 19825), (976, 16250), (1000, 15860), (1040, 15250), (1220, 13000), (1250, 12688), (1300, 12200), (1525, 10400), (1586, 10000), (1625, 9760), (1952, 8125), (2000, 7930), (2080, 7625), (2440, 6500), (2500, 6344), (2600, 6100), (3050, 5200), (3172, 5000), (3250, 4880), (3965, 4000)]