21850723180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{239}}^1\times {\mathrm{2459}}^1$

素因数の和:2744

約数の個数: 144

約数和(自身を含む): 54453772800

約数和(自身を除く): 32603049620

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 169, 220, 239, 260, 286, 338, 478, 572, 676, 715, 845, 956, 1195, 1430, 1690, 1859, 2390, 2459, 2629, 2860, 3107, 3380, 3718, 4780, 4918, 5258, 6214, 7436, 9295, 9836, 10516, 12295, 12428, 13145, 15535, 18590, 24590, 26290, 27049, 31070, 31967, 34177, 37180, 40391, 49180, 52580, 54098, 62140, 63934, 68354, 80782, 108196, 127868, 135245, 136708, 159835, 161564, 170885, 201955, 270490, 319670, 341770, 351637, 403910, 415571, 444301, 540980, 587701, 639340, 683540, 703274, 807820, 831142, 888602, 1175402, 1406548, 1662284, 1758185, 1777204, 2077855, 2221505, 2350804, 2938505, 3516370, 4155710, 4443010, 4571281, 5877010, 6464711, 7032740, 7640113, 8311420, 8886020, 9142562, 11754020, 12929422, 15280226, 18285124, 22856405, 25858844, 30560452, 32323555, 38200565, 45712810, 64647110, 76401130, 84041243, 91425620, 99321469, 129294220, 152802260, 168082486, 198642938, 336164972, 397285876, 420206215, 496607345, 840412430, 993214690, 1092536159, 1680824860, 1986429380, 2185072318, 4370144636, 5462680795, 10925361590, 21850723180]

約数ペア:

[(1, 21850723180), (2, 10925361590), (4, 5462680795), (5, 4370144636), (10, 2185072318), (11, 1986429380), (13, 1680824860), (20, 1092536159), (22, 993214690), (26, 840412430), (44, 496607345), (52, 420206215), (55, 397285876), (65, 336164972), (110, 198642938), (130, 168082486), (143, 152802260), (169, 129294220), (220, 99321469), (239, 91425620), (260, 84041243), (286, 76401130), (338, 64647110), (478, 45712810), (572, 38200565), (676, 32323555), (715, 30560452), (845, 25858844), (956, 22856405), (1195, 18285124), (1430, 15280226), (1690, 12929422), (1859, 11754020), (2390, 9142562), (2459, 8886020), (2629, 8311420), (2860, 7640113), (3107, 7032740), (3380, 6464711), (3718, 5877010), (4780, 4571281), (4918, 4443010), (5258, 4155710), (6214, 3516370), (7436, 2938505), (9295, 2350804), (9836, 2221505), (10516, 2077855), (12295, 1777204), (12428, 1758185), (13145, 1662284), (15535, 1406548), (18590, 1175402), (24590, 888602), (26290, 831142), (27049, 807820), (31070, 703274), (31967, 683540), (34177, 639340), (37180, 587701), (40391, 540980), (49180, 444301), (52580, 415571), (54098, 403910), (62140, 351637), (63934, 341770), (68354, 319670), (80782, 270490), (108196, 201955), (127868, 170885), (135245, 161564), (136708, 159835)]