78544420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 178246656

約数和(自身を除く): 99702236

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 107, 127, 170, 214, 254, 289, 340, 428, 508, 535, 578, 635, 1070, 1156, 1270, 1445, 1819, 2140, 2159, 2540, 2890, 3638, 4318, 5780, 7276, 8636, 9095, 10795, 13589, 18190, 21590, 27178, 30923, 36380, 36703, 43180, 54356, 61846, 67945, 73406, 123692, 135890, 146812, 154615, 183515, 231013, 271780, 309230, 367030, 462026, 618460, 734060, 924052, 1155065, 2310130, 3927221, 4620260, 7854442, 15708884, 19636105, 39272210, 78544420]

約数ペア:

[(1, 78544420), (2, 39272210), (4, 19636105), (5, 15708884), (10, 7854442), (17, 4620260), (20, 3927221), (34, 2310130), (68, 1155065), (85, 924052), (107, 734060), (127, 618460), (170, 462026), (214, 367030), (254, 309230), (289, 271780), (340, 231013), (428, 183515), (508, 154615), (535, 146812), (578, 135890), (635, 123692), (1070, 73406), (1156, 67945), (1270, 61846), (1445, 54356), (1819, 43180), (2140, 36703), (2159, 36380), (2540, 30923), (2890, 27178), (3638, 21590), (4318, 18190), (5780, 13589), (7276, 10795), (8636, 9095)]