209265990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{661}}^1$

素因数の和:905

約数の個数: 64

約数和(自身を含む): 514199232

約数和(自身を除く): 304933242

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 173, 183, 305, 346, 366, 519, 610, 661, 865, 915, 1038, 1322, 1730, 1830, 1983, 2595, 3305, 3966, 5190, 6610, 9915, 10553, 19830, 21106, 31659, 40321, 52765, 63318, 80642, 105530, 114353, 120963, 158295, 201605, 228706, 241926, 316590, 343059, 403210, 571765, 604815, 686118, 1143530, 1209630, 1715295, 3430590, 6975533, 13951066, 20926599, 34877665, 41853198, 69755330, 104632995, 209265990]

約数ペア:

[(1, 209265990), (2, 104632995), (3, 69755330), (5, 41853198), (6, 34877665), (10, 20926599), (15, 13951066), (30, 6975533), (61, 3430590), (122, 1715295), (173, 1209630), (183, 1143530), (305, 686118), (346, 604815), (366, 571765), (519, 403210), (610, 343059), (661, 316590), (865, 241926), (915, 228706), (1038, 201605), (1322, 158295), (1730, 120963), (1830, 114353), (1983, 105530), (2595, 80642), (3305, 63318), (3966, 52765), (5190, 40321), (6610, 31659), (9915, 21106), (10553, 19830)]