128777584

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 288731520

約数和(自身を除く): 159953936

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 79, 104, 136, 158, 208, 221, 272, 316, 442, 461, 632, 884, 922, 1027, 1264, 1343, 1768, 1844, 2054, 2686, 3536, 3688, 4108, 5372, 5993, 7376, 7837, 8216, 10744, 11986, 15674, 16432, 17459, 21488, 23972, 31348, 34918, 36419, 47944, 62696, 69836, 72838, 95888, 101881, 125392, 139672, 145676, 203762, 279344, 291352, 407524, 473447, 582704, 619123, 815048, 946894, 1238246, 1630096, 1893788, 2476492, 3787576, 4952984, 7575152, 8048599, 9905968, 16097198, 32194396, 64388792, 128777584]

約数ペア:

[(1, 128777584), (2, 64388792), (4, 32194396), (8, 16097198), (13, 9905968), (16, 8048599), (17, 7575152), (26, 4952984), (34, 3787576), (52, 2476492), (68, 1893788), (79, 1630096), (104, 1238246), (136, 946894), (158, 815048), (208, 619123), (221, 582704), (272, 473447), (316, 407524), (442, 291352), (461, 279344), (632, 203762), (884, 145676), (922, 139672), (1027, 125392), (1264, 101881), (1343, 95888), (1768, 72838), (1844, 69836), (2054, 62696), (2686, 47944), (3536, 36419), (3688, 34918), (4108, 31348), (5372, 23972), (5993, 21488), (7376, 17459), (7837, 16432), (8216, 15674), (10744, 11986)]