138439552

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 287884800

約数和(自身を除く): 149445248

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 139, 248, 251, 278, 496, 502, 556, 992, 1004, 1112, 1984, 2008, 2224, 3968, 4016, 4309, 4448, 7781, 8032, 8618, 8896, 15562, 16064, 17236, 17792, 31124, 32128, 34472, 34889, 62248, 68944, 69778, 124496, 137888, 139556, 248992, 275776, 279112, 497984, 551552, 558224, 995968, 1081559, 1116448, 2163118, 2232896, 4326236, 4465792, 8652472, 17304944, 34609888, 69219776, 138439552]

約数ペア:

[(1, 138439552), (2, 69219776), (4, 34609888), (8, 17304944), (16, 8652472), (31, 4465792), (32, 4326236), (62, 2232896), (64, 2163118), (124, 1116448), (128, 1081559), (139, 995968), (248, 558224), (251, 551552), (278, 497984), (496, 279112), (502, 275776), (556, 248992), (992, 139556), (1004, 137888), (1112, 124496), (1984, 69778), (2008, 68944), (2224, 62248), (3968, 34889), (4016, 34472), (4309, 32128), (4448, 31124), (7781, 17792), (8032, 17236), (8618, 16064), (8896, 15562)]