171855320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1523}}^1$

素因数の和:1585

約数の個数: 128

約数和(自身を含む): 491581440

約数和(自身を除く): 319726120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 806, 868, 910, 1085, 1240, 1523, 1612, 1736, 1820, 2015, 2170, 2821, 3046, 3224, 3640, 4030, 4340, 5642, 6092, 7615, 8060, 8680, 10661, 11284, 12184, 14105, 15230, 16120, 19799, 21322, 22568, 28210, 30460, 39598, 42644, 47213, 53305, 56420, 60920, 79196, 85288, 94426, 98995, 106610, 112840, 138593, 158392, 188852, 197990, 213220, 236065, 277186, 330491, 377704, 395980, 426440, 472130, 554372, 613769, 660982, 692965, 791960, 944260, 1108744, 1227538, 1321964, 1385930, 1652455, 1888520, 2455076, 2643928, 2771860, 3068845, 3304910, 4296383, 4910152, 5543720, 6137690, 6609820, 8592766, 12275380, 13219640, 17185532, 21481915, 24550760, 34371064, 42963830, 85927660, 171855320]

約数ペア:

[(1, 171855320), (2, 85927660), (4, 42963830), (5, 34371064), (7, 24550760), (8, 21481915), (10, 17185532), (13, 13219640), (14, 12275380), (20, 8592766), (26, 6609820), (28, 6137690), (31, 5543720), (35, 4910152), (40, 4296383), (52, 3304910), (56, 3068845), (62, 2771860), (65, 2643928), (70, 2455076), (91, 1888520), (104, 1652455), (124, 1385930), (130, 1321964), (140, 1227538), (155, 1108744), (182, 944260), (217, 791960), (248, 692965), (260, 660982), (280, 613769), (310, 554372), (364, 472130), (403, 426440), (434, 395980), (455, 377704), (520, 330491), (620, 277186), (728, 236065), (806, 213220), (868, 197990), (910, 188852), (1085, 158392), (1240, 138593), (1523, 112840), (1612, 106610), (1736, 98995), (1820, 94426), (2015, 85288), (2170, 79196), (2821, 60920), (3046, 56420), (3224, 53305), (3640, 47213), (4030, 42644), (4340, 39598), (5642, 30460), (6092, 28210), (7615, 22568), (8060, 21322), (8680, 19799), (10661, 16120), (11284, 15230), (12184, 14105)]