18087660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:312

約数の個数: 144

約数和(自身を含む): 60854976

約数和(自身を除く): 42767316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 23, 30, 34, 36, 45, 46, 51, 60, 68, 69, 85, 90, 92, 102, 115, 138, 153, 170, 180, 204, 207, 230, 255, 257, 276, 306, 340, 345, 391, 414, 460, 510, 514, 612, 690, 765, 771, 782, 828, 1020, 1028, 1035, 1173, 1285, 1380, 1530, 1542, 1564, 1955, 2070, 2313, 2346, 2570, 3060, 3084, 3519, 3855, 3910, 4140, 4369, 4626, 4692, 5140, 5865, 5911, 7038, 7710, 7820, 8738, 9252, 11565, 11730, 11822, 13107, 14076, 15420, 17476, 17595, 17733, 21845, 23130, 23460, 23644, 26214, 29555, 35190, 35466, 39321, 43690, 46260, 52428, 53199, 59110, 65535, 70380, 70932, 78642, 87380, 88665, 100487, 106398, 118220, 131070, 157284, 177330, 196605, 200974, 212796, 262140, 265995, 301461, 354660, 393210, 401948, 502435, 531990, 602922, 786420, 904383, 1004870, 1063980, 1205844, 1507305, 1808766, 2009740, 3014610, 3617532, 4521915, 6029220, 9043830, 18087660]

約数ペア:

[(1, 18087660), (2, 9043830), (3, 6029220), (4, 4521915), (5, 3617532), (6, 3014610), (9, 2009740), (10, 1808766), (12, 1507305), (15, 1205844), (17, 1063980), (18, 1004870), (20, 904383), (23, 786420), (30, 602922), (34, 531990), (36, 502435), (45, 401948), (46, 393210), (51, 354660), (60, 301461), (68, 265995), (69, 262140), (85, 212796), (90, 200974), (92, 196605), (102, 177330), (115, 157284), (138, 131070), (153, 118220), (170, 106398), (180, 100487), (204, 88665), (207, 87380), (230, 78642), (255, 70932), (257, 70380), (276, 65535), (306, 59110), (340, 53199), (345, 52428), (391, 46260), (414, 43690), (460, 39321), (510, 35466), (514, 35190), (612, 29555), (690, 26214), (765, 23644), (771, 23460), (782, 23130), (828, 21845), (1020, 17733), (1028, 17595), (1035, 17476), (1173, 15420), (1285, 14076), (1380, 13107), (1530, 11822), (1542, 11730), (1564, 11565), (1955, 9252), (2070, 8738), (2313, 7820), (2346, 7710), (2570, 7038), (3060, 5911), (3084, 5865), (3519, 5140), (3855, 4692), (3910, 4626), (4140, 4369)]