15851971980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{398491}}^1$

素因数の和:398536

約数の個数: 144

約数和(自身を含む): 54829311264

約数和(自身を除く): 38977339284

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 1020, 1105, 1170, 1326, 1530, 1989, 2210, 2340, 2652, 3060, 3315, 3978, 4420, 6630, 7956, 9945, 13260, 19890, 39780, 398491, 796982, 1195473, 1593964, 1992455, 2390946, 3586419, 3984910, 4781892, 5180383, 5977365, 6774347, 7172838, 7969820, 10360766, 11954730, 13548694, 14345676, 15541149, 17932095, 20323041, 20721532, 23909460, 25901915, 27097388, 31082298, 33871735, 35864190, 40646082, 46623447, 51803830, 60969123, 62164596, 67743470, 71728380, 77705745, 81292164, 88066511, 93246894, 101615205, 103607660, 121938246, 135486940, 155411490, 176133022, 186493788, 203230410, 233117235, 243876492, 264199533, 304845615, 310822980, 352266044, 406460820, 440332555, 466234470, 528399066, 609691230, 792598599, 880665110, 932468940, 1056798132, 1219382460, 1320997665, 1585197198, 1761330220, 2641995330, 3170394396, 3962992995, 5283990660, 7925985990, 15851971980]

約数ペア:

[(1, 15851971980), (2, 7925985990), (3, 5283990660), (4, 3962992995), (5, 3170394396), (6, 2641995330), (9, 1761330220), (10, 1585197198), (12, 1320997665), (13, 1219382460), (15, 1056798132), (17, 932468940), (18, 880665110), (20, 792598599), (26, 609691230), (30, 528399066), (34, 466234470), (36, 440332555), (39, 406460820), (45, 352266044), (51, 310822980), (52, 304845615), (60, 264199533), (65, 243876492), (68, 233117235), (78, 203230410), (85, 186493788), (90, 176133022), (102, 155411490), (117, 135486940), (130, 121938246), (153, 103607660), (156, 101615205), (170, 93246894), (180, 88066511), (195, 81292164), (204, 77705745), (221, 71728380), (234, 67743470), (255, 62164596), (260, 60969123), (306, 51803830), (340, 46623447), (390, 40646082), (442, 35864190), (468, 33871735), (510, 31082298), (585, 27097388), (612, 25901915), (663, 23909460), (765, 20721532), (780, 20323041), (884, 17932095), (1020, 15541149), (1105, 14345676), (1170, 13548694), (1326, 11954730), (1530, 10360766), (1989, 7969820), (2210, 7172838), (2340, 6774347), (2652, 5977365), (3060, 5180383), (3315, 4781892), (3978, 3984910), (4420, 3586419), (6630, 2390946), (7956, 1992455), (9945, 1593964), (13260, 1195473), (19890, 796982), (39780, 398491)]