31918250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 128

約数和(自身を含む): 77995008

約数和(自身を除く): 46076758

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 25, 26, 35, 46, 50, 61, 65, 70, 91, 115, 122, 125, 130, 161, 175, 182, 230, 250, 299, 305, 322, 325, 350, 427, 455, 575, 598, 610, 650, 793, 805, 854, 875, 910, 1150, 1403, 1495, 1525, 1586, 1610, 1625, 1750, 2093, 2135, 2275, 2806, 2875, 2990, 3050, 3250, 3965, 4025, 4186, 4270, 4550, 5551, 5750, 7015, 7475, 7625, 7930, 8050, 9821, 10465, 10675, 11102, 11375, 14030, 14950, 15250, 18239, 19642, 19825, 20125, 20930, 21350, 22750, 27755, 35075, 36478, 37375, 39650, 40250, 49105, 52325, 53375, 55510, 70150, 74750, 91195, 98210, 99125, 104650, 106750, 127673, 138775, 175375, 182390, 198250, 245525, 255346, 261625, 277550, 350750, 455975, 491050, 523250, 638365, 693875, 911950, 1227625, 1276730, 1387750, 2279875, 2455250, 3191825, 4559750, 6383650, 15959125, 31918250]

約数ペア:

[(1, 31918250), (2, 15959125), (5, 6383650), (7, 4559750), (10, 3191825), (13, 2455250), (14, 2279875), (23, 1387750), (25, 1276730), (26, 1227625), (35, 911950), (46, 693875), (50, 638365), (61, 523250), (65, 491050), (70, 455975), (91, 350750), (115, 277550), (122, 261625), (125, 255346), (130, 245525), (161, 198250), (175, 182390), (182, 175375), (230, 138775), (250, 127673), (299, 106750), (305, 104650), (322, 99125), (325, 98210), (350, 91195), (427, 74750), (455, 70150), (575, 55510), (598, 53375), (610, 52325), (650, 49105), (793, 40250), (805, 39650), (854, 37375), (875, 36478), (910, 35075), (1150, 27755), (1403, 22750), (1495, 21350), (1525, 20930), (1586, 20125), (1610, 19825), (1625, 19642), (1750, 18239), (2093, 15250), (2135, 14950), (2275, 14030), (2806, 11375), (2875, 11102), (2990, 10675), (3050, 10465), (3250, 9821), (3965, 8050), (4025, 7930), (4186, 7625), (4270, 7475), (4550, 7015), (5551, 5750)]