2018071720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1583}}^1$

素因数の和:1787

約数の個数: 128

約数和(自身を含む): 5405875200

約数和(自身を除く): 3387803480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 157, 203, 232, 280, 290, 314, 406, 580, 628, 785, 812, 1015, 1099, 1160, 1256, 1570, 1583, 1624, 2030, 2198, 3140, 3166, 4060, 4396, 4553, 5495, 6280, 6332, 7915, 8120, 8792, 9106, 10990, 11081, 12664, 15830, 18212, 21980, 22162, 22765, 31660, 31871, 36424, 43960, 44324, 45530, 45907, 55405, 63320, 63742, 88648, 91060, 91814, 110810, 127484, 159355, 182120, 183628, 221620, 229535, 248531, 254968, 318710, 321349, 367256, 443240, 459070, 497062, 637420, 642698, 918140, 994124, 1242655, 1274840, 1285396, 1606745, 1739717, 1836280, 1988248, 2485310, 2570792, 3213490, 3479434, 4970620, 6426980, 6958868, 7207399, 8698585, 9941240, 12853960, 13917736, 14414798, 17397170, 28829596, 34794340, 36036995, 50451793, 57659192, 69588680, 72073990, 100903586, 144147980, 201807172, 252258965, 288295960, 403614344, 504517930, 1009035860, 2018071720]

約数ペア:

[(1, 2018071720), (2, 1009035860), (4, 504517930), (5, 403614344), (7, 288295960), (8, 252258965), (10, 201807172), (14, 144147980), (20, 100903586), (28, 72073990), (29, 69588680), (35, 57659192), (40, 50451793), (56, 36036995), (58, 34794340), (70, 28829596), (116, 17397170), (140, 14414798), (145, 13917736), (157, 12853960), (203, 9941240), (232, 8698585), (280, 7207399), (290, 6958868), (314, 6426980), (406, 4970620), (580, 3479434), (628, 3213490), (785, 2570792), (812, 2485310), (1015, 1988248), (1099, 1836280), (1160, 1739717), (1256, 1606745), (1570, 1285396), (1583, 1274840), (1624, 1242655), (2030, 994124), (2198, 918140), (3140, 642698), (3166, 637420), (4060, 497062), (4396, 459070), (4553, 443240), (5495, 367256), (6280, 321349), (6332, 318710), (7915, 254968), (8120, 248531), (8792, 229535), (9106, 221620), (10990, 183628), (11081, 182120), (12664, 159355), (15830, 127484), (18212, 110810), (21980, 91814), (22162, 91060), (22765, 88648), (31660, 63742), (31871, 63320), (36424, 55405), (43960, 45907), (44324, 45530)]