221231880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{977}}^1$

素因数の和:1048

約数の個数: 192

約数和(自身を含む): 782673840

約数和(自身を除く): 561441960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 37, 40, 45, 51, 60, 68, 72, 74, 85, 90, 102, 111, 120, 136, 148, 153, 170, 180, 185, 204, 222, 255, 296, 306, 333, 340, 360, 370, 408, 444, 510, 555, 612, 629, 666, 680, 740, 765, 888, 977, 1020, 1110, 1224, 1258, 1332, 1480, 1530, 1665, 1887, 1954, 2040, 2220, 2516, 2664, 2931, 3060, 3145, 3330, 3774, 3908, 4440, 4885, 5032, 5661, 5862, 6120, 6290, 6660, 7548, 7816, 8793, 9435, 9770, 11322, 11724, 12580, 13320, 14655, 15096, 16609, 17586, 18870, 19540, 22644, 23448, 25160, 28305, 29310, 33218, 35172, 36149, 37740, 39080, 43965, 45288, 49827, 56610, 58620, 66436, 70344, 72298, 75480, 83045, 87930, 99654, 108447, 113220, 117240, 132872, 144596, 149481, 166090, 175860, 180745, 199308, 216894, 226440, 249135, 289192, 298962, 325341, 332180, 351720, 361490, 398616, 433788, 498270, 542235, 597924, 614533, 650682, 664360, 722980, 747405, 867576, 996540, 1084470, 1195848, 1229066, 1301364, 1445960, 1494810, 1626705, 1843599, 1993080, 2168940, 2458132, 2602728, 2989620, 3072665, 3253410, 3687198, 4337880, 4916264, 5530797, 5979240, 6145330, 6506820, 7374396, 9217995, 11061594, 12290660, 13013640, 14748792, 18435990, 22123188, 24581320, 27653985, 36871980, 44246376, 55307970, 73743960, 110615940, 221231880]

約数ペア:

[(1, 221231880), (2, 110615940), (3, 73743960), (4, 55307970), (5, 44246376), (6, 36871980), (8, 27653985), (9, 24581320), (10, 22123188), (12, 18435990), (15, 14748792), (17, 13013640), (18, 12290660), (20, 11061594), (24, 9217995), (30, 7374396), (34, 6506820), (36, 6145330), (37, 5979240), (40, 5530797), (45, 4916264), (51, 4337880), (60, 3687198), (68, 3253410), (72, 3072665), (74, 2989620), (85, 2602728), (90, 2458132), (102, 2168940), (111, 1993080), (120, 1843599), (136, 1626705), (148, 1494810), (153, 1445960), (170, 1301364), (180, 1229066), (185, 1195848), (204, 1084470), (222, 996540), (255, 867576), (296, 747405), (306, 722980), (333, 664360), (340, 650682), (360, 614533), (370, 597924), (408, 542235), (444, 498270), (510, 433788), (555, 398616), (612, 361490), (629, 351720), (666, 332180), (680, 325341), (740, 298962), (765, 289192), (888, 249135), (977, 226440), (1020, 216894), (1110, 199308), (1224, 180745), (1258, 175860), (1332, 166090), (1480, 149481), (1530, 144596), (1665, 132872), (1887, 117240), (1954, 113220), (2040, 108447), (2220, 99654), (2516, 87930), (2664, 83045), (2931, 75480), (3060, 72298), (3145, 70344), (3330, 66436), (3774, 58620), (3908, 56610), (4440, 49827), (4885, 45288), (5032, 43965), (5661, 39080), (5862, 37740), (6120, 36149), (6290, 35172), (6660, 33218), (7548, 29310), (7816, 28305), (8793, 25160), (9435, 23448), (9770, 22644), (11322, 19540), (11724, 18870), (12580, 17586), (13320, 16609), (14655, 15096)]