18645900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{683}}^1$

素因数の和:720

約数の個数: 144

約数和(自身を含む): 66495744

約数和(自身を除く): 47849844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 25, 26, 28, 30, 35, 39, 42, 50, 52, 60, 65, 70, 75, 78, 84, 91, 100, 105, 130, 140, 150, 156, 175, 182, 195, 210, 260, 273, 300, 325, 350, 364, 390, 420, 455, 525, 546, 650, 683, 700, 780, 910, 975, 1050, 1092, 1300, 1365, 1366, 1820, 1950, 2049, 2100, 2275, 2730, 2732, 3415, 3900, 4098, 4550, 4781, 5460, 6825, 6830, 8196, 8879, 9100, 9562, 10245, 13650, 13660, 14343, 17075, 17758, 19124, 20490, 23905, 26637, 27300, 28686, 34150, 35516, 40980, 44395, 47810, 51225, 53274, 57372, 62153, 68300, 71715, 88790, 95620, 102450, 106548, 119525, 124306, 133185, 143430, 177580, 186459, 204900, 221975, 239050, 248612, 266370, 286860, 310765, 358575, 372918, 443950, 478100, 532740, 621530, 665925, 717150, 745836, 887900, 932295, 1243060, 1331850, 1434300, 1553825, 1864590, 2663700, 3107650, 3729180, 4661475, 6215300, 9322950, 18645900]

約数ペア:

[(1, 18645900), (2, 9322950), (3, 6215300), (4, 4661475), (5, 3729180), (6, 3107650), (7, 2663700), (10, 1864590), (12, 1553825), (13, 1434300), (14, 1331850), (15, 1243060), (20, 932295), (21, 887900), (25, 745836), (26, 717150), (28, 665925), (30, 621530), (35, 532740), (39, 478100), (42, 443950), (50, 372918), (52, 358575), (60, 310765), (65, 286860), (70, 266370), (75, 248612), (78, 239050), (84, 221975), (91, 204900), (100, 186459), (105, 177580), (130, 143430), (140, 133185), (150, 124306), (156, 119525), (175, 106548), (182, 102450), (195, 95620), (210, 88790), (260, 71715), (273, 68300), (300, 62153), (325, 57372), (350, 53274), (364, 51225), (390, 47810), (420, 44395), (455, 40980), (525, 35516), (546, 34150), (650, 28686), (683, 27300), (700, 26637), (780, 23905), (910, 20490), (975, 19124), (1050, 17758), (1092, 17075), (1300, 14343), (1365, 13660), (1366, 13650), (1820, 10245), (1950, 9562), (2049, 9100), (2100, 8879), (2275, 8196), (2730, 6830), (2732, 6825), (3415, 5460), (3900, 4781), (4098, 4550)]