1280478420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{32189}}^1$

素因数の和:32234

約数の個数: 144

約数和(自身を含む): 4429086480

約数和(自身を除く): 3148608060

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, 32189, 39780, 64378, 96567, 128756, 160945, 193134, 289701, 321890, 386268, 418457, 482835, 547213, 579402, 643780, 836914, 965670, 1094426, 1158804, 1255371, 1448505, 1641639, 1673828, 1931340, 2092285, 2188852, 2510742, 2736065, 2897010, 3283278, 3766113, 4184570, 4924917, 5021484, 5472130, 5794020, 6276855, 6566556, 7113769, 7532226, 8208195, 8369140, 9849834, 10944260, 12553710, 14227538, 15064452, 16416390, 18830565, 19699668, 21341307, 24624585, 25107420, 28455076, 32832780, 35568845, 37661130, 42682614, 49249170, 64023921, 71137690, 75322260, 85365228, 98498340, 106706535, 128047842, 142275380, 213413070, 256095684, 320119605, 426826140, 640239210, 1280478420]

約数ペア:

[(1, 1280478420), (2, 640239210), (3, 426826140), (4, 320119605), (5, 256095684), (6, 213413070), (9, 142275380), (10, 128047842), (12, 106706535), (13, 98498340), (15, 85365228), (17, 75322260), (18, 71137690), (20, 64023921), (26, 49249170), (30, 42682614), (34, 37661130), (36, 35568845), (39, 32832780), (45, 28455076), (51, 25107420), (52, 24624585), (60, 21341307), (65, 19699668), (68, 18830565), (78, 16416390), (85, 15064452), (90, 14227538), (102, 12553710), (117, 10944260), (130, 9849834), (153, 8369140), (156, 8208195), (170, 7532226), (180, 7113769), (195, 6566556), (204, 6276855), (221, 5794020), (234, 5472130), (255, 5021484), (260, 4924917), (306, 4184570), (340, 3766113), (390, 3283278), (442, 2897010), (468, 2736065), (510, 2510742), (585, 2188852), (612, 2092285), (663, 1931340), (765, 1673828), (780, 1641639), (884, 1448505), (1020, 1255371), (1105, 1158804), (1170, 1094426), (1326, 965670), (1530, 836914), (1989, 643780), (2210, 579402), (2340, 547213), (2652, 482835), (3060, 418457), (3315, 386268), (3978, 321890), (4420, 289701), (6630, 193134), (7956, 160945), (9945, 128756), (13260, 96567), (19890, 64378), (32189, 39780)]