208202540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{823}}^1$

素因数の和:991

約数の個数: 96

約数和(自身を含む): 542653440

約数和(自身を除く): 334450900

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 139, 140, 182, 260, 278, 364, 455, 556, 695, 823, 910, 973, 1390, 1646, 1807, 1820, 1946, 2780, 3292, 3614, 3892, 4115, 4865, 5761, 7228, 8230, 9035, 9730, 10699, 11522, 12649, 16460, 18070, 19460, 21398, 23044, 25298, 28805, 36140, 42796, 50596, 53495, 57610, 63245, 74893, 106990, 114397, 115220, 126490, 149786, 213980, 228794, 252980, 299572, 374465, 457588, 571985, 748930, 800779, 1143970, 1487161, 1497860, 1601558, 2287940, 2974322, 3203116, 4003895, 5948644, 7435805, 8007790, 10410127, 14871610, 16015580, 20820254, 29743220, 41640508, 52050635, 104101270, 208202540]

約数ペア:

[(1, 208202540), (2, 104101270), (4, 52050635), (5, 41640508), (7, 29743220), (10, 20820254), (13, 16015580), (14, 14871610), (20, 10410127), (26, 8007790), (28, 7435805), (35, 5948644), (52, 4003895), (65, 3203116), (70, 2974322), (91, 2287940), (130, 1601558), (139, 1497860), (140, 1487161), (182, 1143970), (260, 800779), (278, 748930), (364, 571985), (455, 457588), (556, 374465), (695, 299572), (823, 252980), (910, 228794), (973, 213980), (1390, 149786), (1646, 126490), (1807, 115220), (1820, 114397), (1946, 106990), (2780, 74893), (3292, 63245), (3614, 57610), (3892, 53495), (4115, 50596), (4865, 42796), (5761, 36140), (7228, 28805), (8230, 25298), (9035, 23044), (9730, 21398), (10699, 19460), (11522, 18070), (12649, 16460)]