661493120

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{373}}^1$

素因数の和:572

約数の個数: 128

約数和(自身を含む): 1689193440

約数和(自身を除く): 1027700320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 163, 170, 272, 320, 326, 340, 373, 544, 640, 652, 680, 746, 815, 1088, 1304, 1360, 1492, 1630, 1865, 2176, 2608, 2720, 2771, 2984, 3260, 3730, 5216, 5440, 5542, 5968, 6341, 6520, 7460, 10432, 10880, 11084, 11936, 12682, 13040, 13855, 14920, 20864, 22168, 23872, 25364, 26080, 27710, 29840, 31705, 44336, 47744, 50728, 52160, 55420, 59680, 60799, 63410, 88672, 101456, 104320, 110840, 119360, 121598, 126820, 177344, 202912, 221680, 238720, 243196, 253640, 303995, 354688, 405824, 443360, 486392, 507280, 607990, 811648, 886720, 972784, 1014560, 1033583, 1215980, 1773440, 1945568, 2029120, 2067166, 2431960, 3891136, 4058240, 4134332, 4863920, 5167915, 7782272, 8268664, 9727840, 10335830, 16537328, 19455680, 20671660, 33074656, 38911360, 41343320, 66149312, 82686640, 132298624, 165373280, 330746560, 661493120]

約数ペア:

[(1, 661493120), (2, 330746560), (4, 165373280), (5, 132298624), (8, 82686640), (10, 66149312), (16, 41343320), (17, 38911360), (20, 33074656), (32, 20671660), (34, 19455680), (40, 16537328), (64, 10335830), (68, 9727840), (80, 8268664), (85, 7782272), (128, 5167915), (136, 4863920), (160, 4134332), (163, 4058240), (170, 3891136), (272, 2431960), (320, 2067166), (326, 2029120), (340, 1945568), (373, 1773440), (544, 1215980), (640, 1033583), (652, 1014560), (680, 972784), (746, 886720), (815, 811648), (1088, 607990), (1304, 507280), (1360, 486392), (1492, 443360), (1630, 405824), (1865, 354688), (2176, 303995), (2608, 253640), (2720, 243196), (2771, 238720), (2984, 221680), (3260, 202912), (3730, 177344), (5216, 126820), (5440, 121598), (5542, 119360), (5968, 110840), (6341, 104320), (6520, 101456), (7460, 88672), (10432, 63410), (10880, 60799), (11084, 59680), (11936, 55420), (12682, 52160), (13040, 50728), (13855, 47744), (14920, 44336), (20864, 31705), (22168, 29840), (23872, 27710), (25364, 26080)]