19591980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 57371328

約数和(自身を除く): 37779348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 61, 101, 106, 122, 159, 183, 202, 212, 244, 265, 303, 305, 318, 366, 404, 505, 530, 606, 610, 636, 732, 795, 915, 1010, 1060, 1212, 1220, 1515, 1590, 1830, 2020, 3030, 3180, 3233, 3660, 5353, 6060, 6161, 6466, 9699, 10706, 12322, 12932, 16059, 16165, 18483, 19398, 21412, 24644, 26765, 30805, 32118, 32330, 36966, 38796, 48495, 53530, 61610, 64236, 64660, 73932, 80295, 92415, 96990, 107060, 123220, 160590, 184830, 193980, 321180, 326533, 369660, 653066, 979599, 1306132, 1632665, 1959198, 3265330, 3918396, 4897995, 6530660, 9795990, 19591980]

約数ペア:

[(1, 19591980), (2, 9795990), (3, 6530660), (4, 4897995), (5, 3918396), (6, 3265330), (10, 1959198), (12, 1632665), (15, 1306132), (20, 979599), (30, 653066), (53, 369660), (60, 326533), (61, 321180), (101, 193980), (106, 184830), (122, 160590), (159, 123220), (183, 107060), (202, 96990), (212, 92415), (244, 80295), (265, 73932), (303, 64660), (305, 64236), (318, 61610), (366, 53530), (404, 48495), (505, 38796), (530, 36966), (606, 32330), (610, 32118), (636, 30805), (732, 26765), (795, 24644), (915, 21412), (1010, 19398), (1060, 18483), (1212, 16165), (1220, 16059), (1515, 12932), (1590, 12322), (1830, 10706), (2020, 9699), (3030, 6466), (3180, 6161), (3233, 6060), (3660, 5353)]