1620199920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{355307}}^1$

素因数の和:355342

約数の個数: 80

約数和(自身を含む): 5286983040

約数和(自身を除く): 3666783120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 355307, 710614, 1065921, 1421228, 1776535, 2131842, 2842456, 3553070, 4263684, 5329605, 5684912, 6750833, 7106140, 8527368, 10659210, 13501666, 14212280, 17054736, 20252499, 21318420, 27003332, 28424560, 33754165, 40504998, 42636840, 54006664, 67508330, 81009996, 85273680, 101262495, 108013328, 135016660, 162019992, 202524990, 270033320, 324039984, 405049980, 540066640, 810099960, 1620199920]

約数ペア:

[(1, 1620199920), (2, 810099960), (3, 540066640), (4, 405049980), (5, 324039984), (6, 270033320), (8, 202524990), (10, 162019992), (12, 135016660), (15, 108013328), (16, 101262495), (19, 85273680), (20, 81009996), (24, 67508330), (30, 54006664), (38, 42636840), (40, 40504998), (48, 33754165), (57, 28424560), (60, 27003332), (76, 21318420), (80, 20252499), (95, 17054736), (114, 14212280), (120, 13501666), (152, 10659210), (190, 8527368), (228, 7106140), (240, 6750833), (285, 5684912), (304, 5329605), (380, 4263684), (456, 3553070), (570, 2842456), (760, 2131842), (912, 1776535), (1140, 1421228), (1520, 1065921), (2280, 710614), (4560, 355307)]